Specifications include, but are not limited to: A. Product Description 1. Frame-Type Bleachers: a. Rise and Depth Dimensions: Vertical rise and horizontal depth per row: 8 inches x 24 inches. Seat is 17 inches above its respective tread. b. Framework: Prefabricated angle bleacher frames are spaced at 6-foot (max.) intervals and connected by crossbraces. c. Seats: Nominal 2 x 10 anodized aluminum plank with 2 x 10 anodized end caps. d. Treads: Two nominal 2 x 11 mill aluminum planks with 2 x 11 anodized end caps. e. Risers: Nominal 1 x 6-1/2 anodized aluminum riser planks beginning at Row 1; two 1 x 6-1/2 aluminum riser plank on top row. f. Guardrailing: Two lines of aluminum rail with chain link 42 inches above seat on both sides of bleacher and across back of bleacher. Front rail, 3 line with chain link 42 inches above front walk. g. Entry Steps: Frames with 2 x 12 mill aluminum plank with step riser, contrasting aluminum stair nose and 2 line rail 36 inches above nose of step. Handrails shall extend in the direction of the exit steps 12 inches beyond the end of the steps. Ends shall terminate in newel posts. h. Aisle: Aisle to be provided with 34” high handrail and intermediate rail at approximately 22” above tread. Handrails with rounded ends are discontinuous to allow access to seating through a 24” wide space. Aluminum tread nosing of contrasting color on aisle steps. 2. Wheelchair Area: a. Wheelchair area to be 5’ 6” wide for two wheelchairs (33" each) and 36" for single.
